CN220037536U

CN220037536U - Cutting sleeve type one-way stop valve

Info

Publication number: CN220037536U
Application number: CN202321689812.2U
Authority: CN
Inventors: 王正平; 马韦东; 徐建波; 郑贤东
Original assignee: Ningbo Tianyi Hydraulic Equipment Co ltd
Current assignee: Ningbo Tianyi Hydraulic Equipment Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-11-17
Anticipated expiration: 2033-06-30

Abstract

The utility model relates to a clamping sleeve type one-way stop valve which comprises a valve body, a valve seat, an adjusting rod, a hand wheel, a clamping sleeve nut and a connecting joint, wherein a fluid inlet and a fluid outlet are metric 24-degree cone clamping sleeve joints, and are communicated to form a fluid channel. The valve seat is positioned in the middle of the channel, and the mounting joint is positioned above the valve seat and communicated with the channel. The outer wall of the connecting joint is provided with a conical bulge, and the mounting joint is in threaded connection with the clamping sleeve nut to form conical sealing fit. The upper end of the adjusting rod is fixed on the hand wheel, and the lower end of the adjusting rod penetrates through the connecting joint to abut against the valve seat to form end face sealing fit. The connecting joint and the adjusting rod are provided with threads, and the adjusting rod can ascend or descend through the rotation of the hand wheel. The clamping sleeve type one-way stop valve designed by the utility model has a simple structure, realizes that a transition joint is not needed when the clamping sleeve type one-way stop valve is connected with external hydraulic equipment or an oil way, is convenient and quick to install and detach, saves the installation space, is in different use scenes, and ensures the reliable sealing and flexible control of the valve.

Description

Cutting sleeve type one-way stop valve

Technical Field

The utility model relates to the technical field of valves, in particular to a clamping sleeve type one-way stop valve.

Background

In the prior art, a stop valve, also called a shutter valve, is a forced sealing type valve, and is mainly used for cutting off and throttling media in a pipeline. In general, an existing shut-off valve is composed of a valve body and a valve core, the valve core is installed inside the valve body, external threads are arranged on the valve core, and internal threads matched with the external threads are arranged inside the valve body. The movement of the valve core in the valve body is realized through the screw-on of the external screw thread and the internal screw thread, so that the stop valve is opened and closed.

Currently, stop valves on the market mainly adopt a threaded connection mode and a flange connection mode. Among them, the screw connection mainly includes metric plane seal and imperial plane seal screw, however, when connecting with hydraulic equipment or oil path, a transition joint is required, and the valve body needs to extend the screw thread section at least partially to connect with external hydraulic equipment or oil path, which results in a long overall length of the shut-off valve. This design is not suitable for special cases where installation space is limited. Meanwhile, in order to realize the sealing of the valve core and the valve body or the valve seat and ensure the stability of the valve core during movement, the valve core is required to be designed with more complex structures and is matched with other parts for use, so that the processing and assembling difficulties of the stop valve are increased, and the production efficiency is reduced.

Disclosure of Invention

In order to solve the problems, the utility model provides the clamping sleeve type one-way stop valve which has the advantages of simple structure, simplified installation process, reduced number of connecting parts and effective installation space saving.

In order to achieve the above purpose, the clamping sleeve type one-way stop valve comprises a valve body, a valve seat, an adjusting rod, a hand wheel, a clamping sleeve nut, a connecting joint, a fluid inlet, a fluid outlet and a mounting joint, wherein the fluid inlet, the fluid outlet and the mounting joint are arranged on the valve body, the fluid inlet and the fluid outlet are in metric 24-degree cone clamping sleeve joint, a fluid channel is formed by communicating the fluid inlet with the fluid outlet, the valve seat is arranged in the middle of the fluid channel, the mounting joint is positioned above the valve seat and is communicated with the fluid channel, annular cone-shaped bulges are integrally formed on the outer wall of the connecting joint, annular cone-shaped bulges are arranged on the outer wall of the mounting joint and the inner wall of the clamping sleeve nut, annular cone-shaped cones matched with the lower cone-shaped bulges are arranged on the inner wall of the mounting joint, and when the clamping sleeve nut is in threaded connection with the mounting joint, the clamping sleeve nut is abutted against the upper cone-shaped cones of the cone-shaped bulges so that the lower cone-shaped cones of the cone-shaped bulges are abutted to form cone-shaped sealing fit, the upper ends of the adjusting rod are fixedly connected with the hand wheel, the lower ends penetrate through the connecting joint and are abutted to form end face sealing fit, and the inner walls are arranged on the inner walls of the connecting joint and the adjusting rod and the outer walls of the connecting joint, the inner walls and the connecting joint are correspondingly screwed and the adjusting rod is used for driving the adjusting rod or the hand wheel to rotate.

In order to prevent backflow, the hydraulic fluid pump further comprises a spring and a spring seat, wherein the spring seat and the adjusting rod are coaxially arranged and located between the adjusting rod and the valve seat, the spring is arranged on the adjusting rod in a penetrating mode, one end of the spring is fixedly connected with the connecting joint, the other end of the spring is fixedly connected with the spring seat, and the bottom surface of the spring seat can be communicated with the fluid channel when being stressed.

In order to promote the stability when the spring holder removes, adjust pole lower extreme fixedly connected with guide bar, be provided with on the spring holder with guide bar assorted guiding hole, guide bar passes through guiding hole and spring holder sliding connection.

In order to further improve the tightness of the fluid channel when the fluid channel is cut off, the bottom surface of the spring seat is fixedly connected with a sealing flat gasket, and when the spring seat moves downwards under the elastic action of the spring, the sealing flat gasket and the valve seat form sealing fit to cut off the fluid channel.

In order to further improve the sealing reliability of the stop valve, a first sealing groove is formed in the lower conical surface of the conical protrusion, and an O-shaped sealing ring is fixedly installed in the first sealing groove.

The further scheme is that a second sealing groove is formed in the outer side wall of the adjusting rod, and an O-shaped sealing ring is fixedly installed in the second sealing groove.

In order to make the valve overall structure compacter, still include the lid nut, the connecting joint upper end outer lane is provided with the screw thread with lid nut internal thread looks adaptation, lid nut screw thread and connecting joint threaded connection, and be provided with the through-hole that supplies the hand wheel shaft to pass on the lid nut.

In order to prolong the service life of the valve, the surface of the valve body is galvanized and passivated, and the thickness of the plating layer is 0.008-0.012 cm.

The clamping sleeve type one-way stop valve designed by the utility model has a simple structure, realizes that a transition joint is not needed when the clamping sleeve type one-way stop valve is connected with external hydraulic equipment or an oil way, is convenient and quick to install and detach, saves the installation space, is in different use scenes, and ensures the reliable sealing and flexible control of the valve.

Drawings

FIG. 1 is a schematic overall structure of embodiment 1;

fig. 2 is a schematic structural view of the valve body in embodiment 1;

fig. 3 is a schematic structural view of the connection joint in embodiment 1.

Wherein: the valve comprises a valve body 1, a valve seat 2, an adjusting rod 3, a hand wheel 4, a clamping sleeve nut 5, a connecting joint 6, a fluid inlet 7, a fluid outlet 8, a mounting joint 9, a fluid channel 10, a conical protrusion 11, an annular conical surface 12, a spring 13, a spring seat 14, a guide rod 15, a guide hole 16, a sealing flat gasket 17, a first sealing groove 18, a second sealing groove 19 and a cover nut 20.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1.

As shown in fig. 1-3, the clamping sleeve type one-way stop valve described in this embodiment includes a valve body 1, a valve seat 2, an adjusting rod 3, a hand wheel 4, a clamping sleeve nut 5, a connecting joint 6, and a fluid inlet 7, a fluid outlet 8 and a mounting joint 9 which are arranged on the valve body 1, wherein the fluid inlet 7 and the fluid outlet 8 are a metric 24-degree conical clamping sleeve joint, the fluid inlet 7 and the fluid outlet 8 are communicated to form a fluid channel 10, the valve seat 2 is arranged in the middle of the fluid channel 10, the mounting joint 9 is positioned above the valve seat 2 and is communicated with the fluid channel 10, an annular conical protrusion 11 is integrally formed on the outer wall of the connecting joint 6, an annular conical surface 12 which is matched with the lower conical surface of the conical protrusion 11 is arranged on the inner wall of the mounting joint 9, when the clamping sleeve nut 5 is in threaded connection with the mounting joint 9, so that the lower conical surface of the conical protrusion 11 is abutted against the annular conical surface 12, the upper end of the adjusting rod 3 is fixedly connected with the hand wheel 4, the lower end of the adjusting rod 4 is fixedly connected with the hand wheel 4, and the adjusting rod 3 is arranged through the corresponding to the upper end face of the valve seat 2, the adjusting rod is in a rotary joint 3, or the adjusting rod is connected with the upper end face of the hand wheel 3 in a rotary joint 4 in a rotary manner, and the threaded joint is correspondingly arranged on the inner wall of the valve seat 3. When in use, as shown in fig. 1, the fluid inlet 7 and the fluid outlet 8 are connected with external hydraulic equipment or an oil way (not shown) through 24-degree cone clamping sleeve connectors, the connection and disassembly processes can be completed without complex tools only by manual operation, wherein, as shown in fig. 1 and 3, the clamping sleeve nut 5 is connected on the mounting connector 9 in a threaded manner, simultaneously, the annular cone-shaped bulge 11 on the connecting connector 6 is pressed down to prop against the annular cone surface 12 of the mounting connector 9 to form cone sealing fit, the design ensures good sealing performance of the valve in a use state, effectively prevents medium leakage, when the valve needs to be cut off or opened, the adjusting rod 3 is rotated by the hand wheel 4 to ascend or descend relative to the connecting connector 6, namely, the fluid channel 10 is cut off when the lower end of the adjusting rod 3 props against the valve seat 2, and the fluid channel 10 is communicated when the lower end of the adjusting rod 3 is separated from the valve seat 2, and thus the opening or closing of the valve is realized. By utilizing the structure, a transition joint is not needed when the stop valve is connected with external hydraulic equipment or an oil way, the installation and the disassembly are convenient and quick, the installation space is saved, and therefore, the valve is in different use scenes, and the reliable sealing and flexible control of the valve are ensured.

In some embodiments of the present utility model, as shown in fig. 1, the present utility model further includes a spring 13 and a spring seat 14, the spring seat 14 is coaxially disposed with the adjusting rod 3 and is located between the adjusting rod 3 and the valve seat 2, the spring 13 is disposed on the adjusting rod 3 in a penetrating manner, one end of the spring is fixedly connected with the connecting joint 6, and the other end of the spring is fixedly connected with the spring seat 14, so that the bottom surface of the spring seat 14 can be communicated with the fluid channel 10 when being stressed. In this embodiment, when the valve is stationary, the spring seat 14 is kept against the valve seat 10 under the elastic action of the spring 13 to intercept the fluid channel 10, when the fluid inlet 7 and the fluid outlet 8 are connected with external hydraulic equipment or an oil way through 24-degree taper sleeve joints, the spring seat 14 is separated from the valve seat 2 by upward movement of the spring seat 14 under the action of the fluid pressure from the fluid inlet 7 being greater than the elastic force of the spring 13, so that the fluid channel 10 is communicated, when the fluid pressure is smaller than the elastic force of the spring 13, the spring seat 14 is restored to play a role of check, and when the valve needs to be closed, the hand wheel 4 rotates to drive the adjusting rod 3 to move downward so that the spring seat 14 is against the valve seat 2, thereby realizing the closing of the valve and ensuring the normal function of the valve.

In some embodiments of the present utility model, as shown in fig. 1, a guide rod 15 is fixedly connected to the lower end of the adjusting rod 3, a guide hole 16 matched with the guide rod 15 is provided on the spring seat 14, and the guide rod 15 is slidably connected to the spring seat 14 through the guide hole 16. The guide hole 16 is matched with the guide rod 15, so that the spring seat 14 can accurately slide along the direction of the guide rod 15 when moving, the movement track of the spring seat 14 is ensured to be always kept on a preset path, the possibility of swing or offset is reduced, and the stability of the stop valve during working is further improved.

In some embodiments of the present utility model, as shown in fig. 1, a flat sealing pad 17 is fixedly connected to the bottom surface of the spring seat 14, and when the spring seat 14 moves downward under the elastic action of the spring 13, the flat sealing pad 17 forms a sealing fit with the valve seat 2 to intercept the fluid passage 10. Thus, by using the flat gasket 17, when the spring seat 14 moves downward, a tighter sealing fit can be formed between the flat gasket 17 and the valve seat 2, and since the flat gasket 17 is generally made of a pressure-resistant and corrosion-resistant material, the sealing fit between the flat gasket 17 and the valve seat 2 can bear a larger pressing force when the valve is closed, thereby further enhancing the sealing performance of the valve.

In some embodiments of the present utility model, as shown in fig. 1, a first sealing groove 18 is formed on the lower conical surface of the conical protrusion 11, and an O-ring is fixedly installed in the first sealing groove 18; the outer side wall of the adjusting rod 3 is provided with a second sealing groove 19, and an O-shaped sealing ring is fixedly arranged in the second sealing groove 19. So as to effectively prevent leakage and permeation of the medium and improve the sealing reliability of the stop valve.

In some embodiments of the present utility model, as shown in fig. 1, the present utility model further includes a cap nut 20, the outer ring at the upper end of the connection joint 6 is provided with a thread matching with the internal thread of the cap nut 20, the cap nut 20 is in threaded connection with the connection joint 6, and the cap nut 20 is provided with a through hole for passing the wheel axle of the hand wheel 4. The use of the cap nut 20, on the one hand, enables the axle of the hand wheel 4 to pass through the through hole to provide additional fixing support for the hand wheel 4, and, on the other hand, can avoid the direct exposure of the adjusting lever 3 and the connecting joint 6 to the external environment, thereby further reducing the possibility of interference from external factors when the two are operated.

In some embodiments of the utility model, the surface of the valve body 1 is of galvanised and passivated design and the coating thickness is 0.008-0.012 cm in order to extend the service life of the valve. The galvanization and passivation process can provide excellent corrosion resistance properties for the valve body and the valve core, which helps to reduce problems of part wear, damage, oil leakage, etc. caused by friction and wear, and improve durability and service life of the shuttle valve.

The cutting ferrule type one-way stop valve provided by the embodiment has a simple structure, simplifies the installation process, reduces the number of connecting parts and effectively saves the installation space.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The cutting ferrule type one-way stop valve comprises a valve body (1), a valve seat (2), an adjusting rod (3), a hand wheel (4), a cutting ferrule nut (5), a connecting joint (6), a fluid inlet (7), a fluid outlet (8) and an installation joint (9) which are arranged on the valve body (1), and is characterized in that the fluid inlet (7) and the fluid outlet (8) are metric 24-degree cone cutting ferrule joints, a fluid channel (10) is formed by communicating the fluid inlet (7) with the fluid outlet (8), the valve seat (2) is arranged in the middle of the fluid channel (10), the installation joint (9) is arranged above the valve seat (2) and is communicated with the fluid channel (10), the outer wall of the connecting joint (6) is integrally formed with an annular conical bulge (11), the outer wall of the mounting joint (9) and the inner wall of the cutting sleeve nut (5) are provided with matched threads, the inner wall of the mounting joint (9) is provided with an annular conical surface (12) matched with the lower conical surface of the conical bulge (11), when the cutting sleeve nut (5) is in threaded connection with the mounting joint (9), the cutting sleeve nut (5) abuts against the upper conical surface of the conical bulge (11) so that the lower conical surface of the conical bulge (11) abuts against the annular conical surface (12) to form conical sealing fit, the upper end of the adjusting rod (3) is fixedly connected with the hand wheel (4), the lower end of the adjusting rod penetrates through the connecting joint (6) to be arranged and props against the valve seat (2) to form end face sealing fit, and the inner wall of the connecting joint (6) and the outer wall of the adjusting rod (3) are provided with adaptive threads for driving the adjusting rod (3) to ascend or descend relative to the connecting joint (6) through rotation of the hand wheel (4).

2. The clamping sleeve type one-way stop valve according to claim 1, further comprising a spring (13) and a spring seat (14), wherein the spring seat (14) is coaxially arranged with the adjusting rod (3) and is positioned between the adjusting rod (3) and the valve seat (2), the spring (13) is arranged on the adjusting rod (3) in a penetrating manner, one end of the spring is fixedly connected with the connecting joint (6), and the other end of the spring is fixedly connected with the spring seat (14), so that the bottom surface of the spring seat (14) can be communicated with the fluid channel (10) when being stressed.

3. The clamping sleeve type one-way stop valve according to claim 2, wherein the lower end of the adjusting rod (3) is fixedly connected with a guide rod (15), a guide hole (16) matched with the guide rod (15) is formed in the spring seat (14), and the guide rod (15) is slidably connected with the spring seat (14) through the guide hole (16).

4. The clamping sleeve type one-way stop valve according to claim 2, wherein a sealing flat pad (17) is fixedly connected to the bottom surface of the spring seat (14), and when the spring seat (14) moves downwards under the elastic action of the spring (13), the sealing flat pad (17) forms sealing fit with the valve seat (2) to cut off the fluid channel (10).

5. The cutting sleeve type one-way stop valve according to claim 1, wherein a first sealing groove (18) is formed in the lower conical surface of the conical protrusion (11), and an O-shaped sealing ring is fixedly installed in the first sealing groove (18).

6. The cutting sleeve type one-way stop valve according to claim 1, wherein a second sealing groove (19) is formed in the outer side wall of the adjusting rod (3), and an O-shaped sealing ring is fixedly installed in the second sealing groove (19).

7. The clamping sleeve type one-way stop valve according to claim 1, further comprising a cap nut (20), wherein threads matched with the internal threads of the cap nut (20) are arranged on the outer ring of the upper end of the connecting joint (6), the cap nut (20) is in threaded connection with the connecting joint (6), and a through hole for a wheel shaft of the hand wheel (4) to pass through is formed in the cap nut (20).

8. A one-way stop valve as claimed in claim 1, characterized in that the surface of the valve body (1) is galvanised and passivated and the thickness of the coating is 0.008-0.012 cm.